Science & Discovery Who Built this Mysterious Military Fortress and Why?! | Secrets in the Sand | Science Channel admin July 5, 2026 0Comments Share This Article Share PostShare on FacebookShare on XShare by EmailCopy URL to clipboard On the edge of the unforgiving Gobi Desert an abandoned fortress is unearthed, along with an arsenal of weapons including crossbows, sword guards, knives, and more. A fortress armed to the teeth – but why, and for what?! Facebook X Pinterest